Manufacture of wire and wire rod



(No Model.) 2 SheetsSheet 1} J. BLEEDHAMv MANUFACTURE OF WIRE AND WIRERODS.

No. 510,703. Patented Dec. 12, 1893.

WITNESSES INYENTOR w: NQnoNAL unloenAPNma ccmlPAlw. vlAaHlNeToN. u. c.

(No Model.)

No. 510,703. Patented Dec. 12, 1893.

INVENTOR WITN s's ses m! NAMMAL LITNOGRAPHING OOMPANV.

wunmarcn. la. 0.

UNi'rE STATES 1 PATENT OFFICE.

JOSEPH NEEDHAM, OF BRADDOOK, PENNSYLVANIA.

MANUFACTURE OF WIRE AND WIRE ROD.

SPECIFICATION forming part of Letters Patent No. 510,703, dated December12, 1893.

$erial No. 472,183. (No model.)

Tau/ll whom it may concern, 7

Be it known that I, JOSEPH NEEDHAM, of Braddock, in the county ofAllegheny and State of Pennsylvania, have invented'a new and usefulImprovement in the Manufacture of Wire and Wire Rods, of which thefollowing is a full, clear, and exact description, reference being badto the accompanying drawlugs, forming partof this specification, inwhich- Figure 1 is a plan View of my improved plant for preparingwire'for drawings; and Flg. 2 is a vertical section of thelime-coatingapparatus.

My invention relates to the treatment of wire in preparing the same fordrawing, and it consists in an improved method of and plant for suchpreparation.

In the drawings, Fig. 1, 2 represents the carrier leading from thereels, and 3 the station just inside the wall of the building where thecoils are piled up previous to treatment. From this place they are takenupon a reel or yoke to the pickling-vat 4, where they are treated withdiluted acid to remove the scale and oxide formed in rolling. This bathis washed. This, however, does not completely reach the acid andneutralize the same, and to do this more effectually I proceed as follows :After the coils are removed from the pickling-vat, they are placedupon a wheeled truck and a stream of water from a hose is turned uponthem. After this washingI r in the truck 6 upon an elevator 5, and thetruck is then lowered into a hot bath of lime-water,

contained in the bath 7. This thin whitewash is kept hot by a suitablesteam coil 8 in the bottom of the vat; and I retain the wire rods inthis bath a sufficient length of If left in this condition, the rod Thecondensed steam and water pass somewhat. This draining is muchfacilitated I -bythe hot lime coating, as the temperature of the bath isnearly at the boiling-point, and the trucks are then run into thebakingovens 10.

While the truck is in the bath, it is-preferably raised and lowered by ahydraulic cylinder, to aid the action of the whitewash and keep themixture uniform.

The advantages of 'my invention will be apparent to those skilled in theart, since the wdifficult and disagreeable manual handling of thealkaline solution is done away with, and there is no separate handlingof the coils after they are placed upon the truck,fas they remainthereon during the whitewash treatment and'the baking. The coating oflime is much more uniform and'atfords a better product, as the drawingof the wire is much facilitated thereby.

"Many changes may be made in the form and arrangement of the partswithout departure from my invention as defined in the following claims.a

I claim- '1. The process of treating wire rods or wire, consisting inpickling the same, washing the pickled coils, immersing the washed coilsin a bath of heated lime solution, and then bakingthem {substantially asdescribed.

2. The method of treating wire rods, consisting in pickling and washingthe same, piling them upon a truck," immersing the truck and coils in abath of lime solution, and then moving the truck into a baking-oven;substantially as described.

3. The method of treating wire rods, consisting in pickling the Bame andthen immersing the pickled wire in a bath of heated lime solution,maintaining the rods in the bath until they are brought to a higher tem-5 perature than that to which they were exposed in pickling and thenbaking them; substantially as described.

In testimony whereof I have hereunto set my hand JOSEPH NEEDI-IAM.

W'itnesses:

W. B. CORWIN, H. M. CORVVIN.

